Matrix for typographical machines



Oct. 27, 1931. I E ROY w w 1,829,695

MATRIX EOR TYPOGRAPHICAL MACHINES FiledJAarch 17, 1931 INVENTOR ATTORNEY o "the left a matrix having supportingteeth as i previously used; V

' The matrixMas hereinshown is ofthe general form tor-outline as thatfcommonly used in line castingmachines ofthe class hereinbefore rjeferr'ed. to, such matrices, which are composed usually, of brass,i-:comprisingla body of; approximately rectangular form.

having lugs or earspro eoting'frorn thecor ners to serve for; alin'ing and othenpurposes in the machine,-the'rear edge of the matrix body having a character :m punched or otherwise formed therein in intaglio, this"clia'rac -ter forming a die which the corresponding type character is cast, it being understoodthat the matrices are commonly 'rassembled,

in: lines withthechar actersiin their'rear edges in alinement so'rthat a type bar or slugmay be castagainstthejcharacter bearing portion of the matrices in the line. During the travel ofitthe matricesi through the machineflthey v I, ares suspended from ribbed or toothed. rails n which theteeth inthe V-shapedlnotohes'of thefdifierent matrices engage slidably so that 'orsbars, 'such 'as the secondelevator toothed bar,theJtoothed'distributor box bar and the" toothed 6r ribbed combination distributor I bar, and: for this purpose, the upper edge of ach'matrix' is 'forme'd with-a V -sha'ped notch theoppo'site wallsoffwhich are-downwardly convergent ito receive' the toothed or ribbed supporting bar or rail" 1 A portion of one' of othe usual toothedmatrix supporting bars is indicated at lin 'Fig; 5, the lower Vi-shaped.

eplge'iof this. bar" having ribs "or teeth' 2 With theyv "will :be susp ended therefrom while travellingfitherealong.f

& neeeoare, the relatively thick er igii e matrices bearingheading, advertising or dis playcharactersih'ave been formedwith rela? tively narrow teeth immediately adjacent to z and'l'along one side of the' matriX, as indi-i hangfi'om the matrix supporting-bars in'an plane passing vertically through the center of weight of'the' matrix, such matrix would inclined or tilted position as shown in this figure, therebycausing faulty distribution. Furthermore, the -inclinedrposition of! such m atrices hile travelling along 7 the toothedor ribbed supporting bars subjected the teeth thereof to r-rapid'vvear: so that suchfmatrices were t eas er s e e un f 'zlfe tm use.

r diffioulties"have jbeenfovercome' providing these; relatively thick "or large a matrices with relatively wide or long/teeth, as shown andd'escribed in. the 'Freund patent referred to above,fand while this has proven satisfactory inservice, it has b'een fo'und T fth'e amount ofcuttingnecessary toidrm th ese 'lo'ng teeth {can be; reduced to a large extent and threby efle'ct economy and save 1 time manufacture a'nd'at the same time produce matrices with narrow-teeth which vwill not'wear out quickly as heretofore,

1 The present invention provides'an imaproved tooth formationfor suchrelatively thick and'heavy 'matrices whereby the true vertical-or. upright suspension ofthese matrices' 'from. thetoothedftor ribbed-f. supporting .barsin. the machine is attained and-yet the supp r i g t eth f t em tr s a re o tiv y ier or sho t? so t at, h iiwrat cutting of the teethmay beflacconiplished more rapi'dly'andatless expense than is pos-- sibl'e with'the'ielatively wide or long teeth,

; the suspension ofthe matrices in true Vertical I or upright position, accomplished by a novel 'arrangement of: the teeth, minimizing wear 'Therow of teeth on extend in aver'tical plane parallel to and" are immediately =adj acent to the flat face m ofgthe matrix';which is the rear "or 'follo wing "face of the matrix while it is travelling along the combination" distributor bar foridistribution, these teeth Tex tei'idingffron the apexto-the/topj of "the V- shaped' notchs v-l'lfhe teeth-int however on: the otherffwall of the: V-shapedfinotch extend in a row' in an-inclinedfp-laneior obliquely from the apex 'of the Y shapednotch at apoint imniediatelyfadj'acent to tlie- 'face' m t thematrix, upwardly towardthe opposite 'fiat face of the'matriX asthese teeth-approach the top of the: ii-shaped 'notch, and preferably, the

te'eth -m jat or nearz the top of the V -shaped notclrliein orexte'nd'across orbeyond a plane passing vertically through' the center of Weight ofth'e matrix. .Bothv setsof teeth m and Mi -are narrow or ofshortlength comparable with" the narrow T or short teeth" pre viouslyfused" generally on matrices, so that the operation ofcutting'or broaching th'e improved teeth can be accomplished as quickly inexpensively "as" the usual narrow or short teeth, and to facilitatethe "cutting of the teeth, they are all preferably'ofnniform I By arranging the teeth I on one Wall of the notch, as the jteeth m parallel and immediately adj acent to' the face' m of the matrix,

- dropping of the'matrix when it'l' reachejs the a precisely correct pointin the length" of the combinationdistributor bards-insured? when these matrices' are fused in a machine having the; usual or?standard distributor bart since for the? respect matrices asestablishedby these the 'plane'iof distribution the eemb'iimagns rteetlr on thejf'usu'alor V V standard{distributor"bar; and b-y extendin g the te thpn the opposite walltf thefv-sha ed V notch, as theteeth m fobliquelyfto or'across o I v a plane passing vertically through'the center ofweight of the matrix, the matrixwill be suspended by the teeth m and m from the ribs of thetoothed supporting bars in the machine at points which-lie approximatef-ifly in a plane passing vertically through the center of weight ofthe matrix, so that the matrix will hang in a true vertical or up right position while travelling along the supporting bars, as shown diagrammatically by the right hand matrix M in Fig. 5. This vertical or upright suspension of the matrix P from the toothed supporting bars while travelling therealong will insure correct distribution, and, moreover, the supporting of the matrix in a true upright position While traveling along the toothed or ribbed supporting bars in the machine, will minimize wear between the matrix teeth and the teeth or ribs of the supporting bars in themachine, so

that satisfactory length of" service is obtainable from matrices having relatively narrow or short teeth when arranged or disposed in elevator toothed'bar, the toothed distributor accordance with the present invention as hereinbefore described;

The oblique arran'gementof the teeth at one side of the notch in the matrix presents the further advantage of causing a successiveengagement of-theseteeth with the ribs or teeth at the entranceends of the second box bar and the combination distributorbar, and any slight wear of the teeth or ribs or v V slight misalinement, of these ribbed supporting bars with respect to one another will not cause all of the teeth'of the matrix to simultaneously come into engagement therewith but will cause a successive threading of the teeth, one at a time, upon these ribbed or toothed bars, thus avoiding undue wear of the teeth and avoiding obstruction to the r matrices at the pointswhere they are transferredto the toothed or ribbedsupporting bars during the passage of the matrices through the machine. 1

- It will be understood that in the manufacture of matrices, having teeth constructed 7 and arranged according to the present invention, the top of the matrix, at the side opposite to'that in whichthe teeth are formed, is cut away to form the yoke-shaped recess m as usual, and the convergent walls of theV- shaped notch alongside of the teeth thereon are cutaway so that the broaching or milling operation used in cutting the teeth is reducer to the width of the teeth, thus enabling such operationto be performed rapidly and with accuracy and at less expense than is possible with relatively wide or long teeth. The weight of the'relatively thick matrix maybe reduced by drilling or otherwise forming a hole m therein.

It will be further understood that the arrangement of the teeth on matrices as herein descrlbed maybe varied in many ways to accomplish'the results generally aimed at by the preferred construction illustrated in the drawings, the essence of the invention residing in the provision of narrow teeth which,

i from the apex of the notch to the top, will all have their leading edges, at least on one side of the notch, extend obliquely from one side of the. matrix substantially to or through the center of weight or toward the opposite side of the matrix.

having a notch with convergent walls, and

distributorteeth on said walls, the teeth on I one of said walls lying in a vertical plane parallel and adjacent to a side of the matrix and the teeth on the other wall extending from said side of the matrix obliquely toward the center of weight of the matrix.

3. A matrix for typographical machines comprisinga body having a notch with convergent walls, and distributor teeth on said walls, the leading edges of the teeth on one of said walls lying parallel to a side of the matrix body and the leading edges of the teeth on the other wall extending obliquely across a portion of said wall from the apex to the top of the notch.

4'. A matrix for typographical machines comprising a body having a notch with convergent walls, anddistributorteeth of uniform length on said walls, the leading edges of the teeth on one of'said walls lying parallel and adj acent to a side of the matrix body, and the leading edges of the teeth on the other wall extending obliquely from the apex of the notch toward the opposite side ofithe matrix.

5. matrix for typographical machines comprising a body having a notch with convergent walls, and distributor teeth 01 uniform length on said walls, the teeth on one of said walls lying parallel and adjacent to a side of the matrix body, and the teeth on the other wall extending obliquely from said side of the matrix body and from the apex of the notch to the center of weight of the matrix. I

In testimony whereof I have hereunto set my hand 7 LE ROY W. WILLIS. 

